Is there anybody out there that manufactures a stock for SS rifles that has a adjustable cheek piece built in? Thanks for your answer Hank45

If my memory is correct some of the later post WW1 single shots used in various international and Olympic competition had butts with adjustable length, buttplate angle, and cheekpiece elevation.  the wooden part of the cheek piece was mounted on threaded rod that allowed it to be raised or lowered into the cut out stock or even switched with a differently configured cheekpiece block.  The technique has carried over into modern competition rifles.   I'm sure I have seen martini competition rifles stocked this way.
I see no reason a stock could not be converted by a skilled creative stock carver, assuming the main portion was reinforced and of course used for a minimal recoil cartridge

One of our Etna Green shooters has a nice vintage 22 rf Ballard position-rifle which has the whole top half of the butt adjustable.  Since he's a lefty who shoots almost entirely bench rest he shoots it with the top of the stock removed